MATHEMATICS MIDDLE SCHOOL

1. Calculati! ( Va rog ajutati-ma! )1. 7+ (-9) = ?
2.(-8) + (+5)= ?
3.(+9) - (-3) = ?
4.(+12) - (-1) = ?
5. (-7) - (-5) = ?
(-14) - (+2) = ?

Answers

Answer 1
Answer: 1. 7+ (-9) = 7-9=-2
2.(-8) + (+5)= -8+5= -(8-5)=-3
3.(+9) - (-3) = 9+3=12
4.(+12) - (-1) = 12+1=13
5. (-7) - (-5) = -7+5==(7-5)=-2
(-14) - (+2) = -14-2=-(14+2)=-16

Related Questions

Name a pair of acute vertical angles
Jill measured the length of her eraser. She wrote 5 on her paper without the unit. Which metric unit of measure should Jill include?
What is the largest factor of 54,321 that is less than 54,321?
Solve for " x " --- 20/x = 4/9 ? explain. (:
Find EG (Line) Please Help :)I know the answer is 18, but I don’t know how it’s 18

What is 59,424.77 rounded to the nearest square mile

Answers

the saying for rounding is if the number is above 5 you round up and if it is below 5 you leave it the same. So this rounded whould be 59,425 by what you told me hoope that helps

At a Garlic Festival Fun Run, 5/12 of the runners are women. If there are 780 runners, how many are women? How many are men?

Answers

455, because if you do 5/12=0.416666..., and then you multiply that to 780 you would get 325, and then you do 780-325 to equal 455.

Which expression can be used to find the surface area of the following triangular prism? *picture of a triangular prism* Choose 1 answer: (Choice A) 24+24+ 120+160+20024+24+120+160+20024, plus, 24, plus, 120, plus, 160, plus, 200 (Choice B) 24+20024+20024, plus, 200 (Choice C) 24+24+200+120+12024+24+200+120+12024, plus, 24, plus, 200, plus, 120, plus, 120 (Choice D) 48+48+120+160+20048+48+120+160+200

Answers

Answer:

A. 24+24+120+160+200

Step-by-step explanation:

Surface area of the triangular prism= addition of the area of each shape that forms the prism

There are two triangles

Area of a triangle=1/2*base*height

=1/2*8*6

=1/2*48

=24

Area of two triangles=24+24

There are 3 rectangles with different dimensions

Back rectangle=length×width

=20×6

=120

Bottom rectangle=length ×width

=20x8

=160

Top rectangle=length × width

=20×10

=200

Surface area =Area of two triangles + Back rectangle + Bottom rectangle + Top rectangle

=24+24+120+160+200
A: 24+24+120+160+200 :)

A+B=8
C+D=6
A+C=13
B+D=8
Please answer it?

Answers

Answer:  No Solution

Step-by-step explanation:

8 = A + B                                  13 =  A    +   C

6 =              C + D                      8 =        B   +    D

14 = A + B + C + D                     21 = A + B + C + D

The sum of A, B, C, and D cannot equal 14 and also 21 so there is

NO SOLUTION

How much trail mix will each person get if 5 people share 1/2 pound of trail mix

Answers

idk if this will help but each person should recieve 20% of the 1/2 pound bag of trail mix

12) I can run 3.6 miles in 30
minutes. How far can I run in
1.5 hours?

Answers

1.5 hours=90 minutes

Because 90 minutes/ 30 minutes is 3, multiply 3.6 miles by 3 and get 10.8 miles as your final answer
Other Questions
Question:Write an equation to represent the proportional relationships described in each statement.1. A farmer feeds five chickens (c) for ever goat (g) he feeds on his farm.2. The total cost (t) is proportional to the number (n) of items purchased at a constant price of $3.3. If a pizza with 8 slices cost $12.00, represent the total cost (t) of the number of slices (s).
a plane flies with 54% of its seats empty. if 81 seats are empty what is the total number of seats on the plane
Five people are sharing three-fifths of a pizza. What equal sized portion of the whole pizza will each five people receive? (Please explain step by step)
What is the approximate volume of a sphere with a radius of 9 in.? Use 3.14 to approximate pi and express your answer in hundredths.